Torqur converter lock up switch

[doyle95]

Hey guys i got a new question can we do torque converter lock up switches on the obs and what are the advantages and disadvantages of one

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[85_305]

More power and better mpg's. Yes you can, but I just stick with good tuning. These trucks lock up at like 35-40mph as it is. The only time a lockup switch would be good is when using the ebpv as an exhaust brake w/ a 3way.

[jesilvas]

Not the only time. Yes, a tune can be written after a lot of tweaking to lock like you want, but a switch is faster and on demand. I've needed it going up a steep grade in 2nd gear. if not, I woulda burnt the trans up.

[doyle95]

Well i hace php tuning and im doing a lot of tunibg so i think it would be a great idea does anybody know how to do it and i wanna do the ebpv mod also if any body knows how to do that one

[elrojo63]

Yeah I'll try and get you the right wire to ground out for lockup switch. Exhaust brake it easy. I ran a 3 way switch. One pole connects to battery. One connects to PCM side of the grey with white stripe(I think) wire in ebpv harness and other pole goes to ebpv side. One is manual control and other lets the PCM do what it wants.


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[doyle95]

So what i need to do is take that grey and white wire and cut it and the put both side of it on to the three way switch?

[elrojo63]

Yep or if you don want to have the PCM ever control it run a two way switch.


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[doyle95]

Ok cool ya id rather have the pcm still in some control is this for the ebpv or the torque converter

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[jesilvas]

Both in the tech files.

TC Control Switch Writeup

Homemade exhaust brake
To accompany the EBPV brake - Do You Offer a Decel or Exhaust Brake Tune? - Power Hungry Performance Forum

[elrojo63]

You don't need that thing to stop the od light flashing on obs.


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